https://www.overclock3d.net/news/cpu_mainboard/amd_hints_at_zen_3_s_performance_gains_-_claims_its_an_entirely_new_architecture/1
 
Zen 2 has been a gamechanger for AMD, enabling the company to make gains in every market segment where the architecture is available. Simply put, Zen 2 architectural changes and cutting-edge manufacturing have allowed AMD to be more competitive than they have been at any time in the past decade. 

While Zen 2 offered a tremendous leap for AMD's CPU performance, AMD doesn't expect things to slow down with Zen 3. In an interview with The Street, AMD's Forrest Norrod said that Zen 3 would be an "entirely new architecture", and that Zen 3 would be "right in line with what you would expect from an entirely new architecture." This sets some high expectations for Zen 3. 

In the same interview, AMD's Forrest Norrod stated that AMD was "confident [in] being able to drive significant IPC gains each generation," and that AMD's future server CPU launches would rely on a "tick-tock" cadence, which is something that Intel has failed to do for several years. 

We know that Zen 3 will a more mature version of the same 7nm manufacturing techniques that today's Zen 2 processors are based on, making most of Zen 3's performance gains due to architectural changes. 
 
An 8-10% IPC gain with Zen 3 and a few 100 MHz in clock speed would make Zen 3 a decent upgrade over Zen 2, especially if Intel cannot adequately react to AMD's HEDT and server-grade offerings. 
AMD's Zen 3 architecture is due to release in 2020 for both the desktop and server markets. 
 
In my opinion Intel needs to get their 10nm on track if they wish to compete. 

rjohnson11
In my opinion Intel needs to get their 10nm on track if they wish to compete. 

Intel will be launching 7nm compute cards next year, pretty sure they'll throw some CPUs on that node too.
 
Great to hear it's a new uArch, makes the performance claims a little more believable. Any IPC improvements will be very welcome.